Yes, it's one of the games Steam has for sale that's still being fine-tuned but is basically playable. There will be periodic updates. I just felt I had to have it, even though I'm not quite finished with Risen and have Amnesia waiting in the wings.

It seems a bit slow on my laptop, which is odd given that the graphics are similar to the original games I played(i.e. 5-8) and the movement is on a grid. Seems counter-intuitive that it should be a graphics hog.